Forestry researchers help lift the "veil of secrecy" on the causes of tree disease
Series: Forestry science photo story -- no. 27; Forestry science photo story -- no. 27.
Publisher: Northeastern Forest Experiment Station
Place of publication: Upper Darby, Pa
Language: eng
Subjects: Diseases and pests; Trees; Research
Other titles: Help lift the "veil of secrecy" on the causes of tree disease